Improvement in cart-saddles



. B. MGCLURE.

can sadd.

Patented Dec. 14, 1869.

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W. B. MCCLURE, OF ALEXANDRIA,'VIRGINIA.

IIVIPRl/EMENT IN CARTFSADDLESV.

Specification forming part of Letters Patent No. 97,789, dated December 14, 1869.

To all whom 'it may concern:

Be it known that LW. B. MGGLURE, of.

ence being had to the accompanying drawings,

and 1o theletters ofreference marked thereon.

This invention Yrelates to that class ot' cartsaddles which employs certain devices for permittiug the chain to move from side to side in the groove of the saddle as the position of the a.shafts is changed; and it consists, mainly, in the employment ot' rollers in the groove, which have their bearing in semicircular depressions, as will be fully described hereinafter.

In the drawings, Figure 1 represents aperspective view, and Fig. 2 a central sectional elevation.

To enable others skilled in the art to make and use my invention, I will now proceed to describe its construction aud operation.

A represents a cart-saddle of the ordinary form,which is provided withthe usual groove,a.

b b b represent rollers, which are located in the semicircular depression a' of the saddle, and secured from displacement by means of the bolts c, which pass through the olitices of the rollers, as shown. The rollers do not rest 4upon the bolts, as is usually the case, their oritlces being greater in diameter than their bolts, but have their bearing in the depressions a'. To obviate the excessivefriction that would necessarily occur if the rollers rested directly upon the Wood of the saddle, I provide curved bearing-plates a2, which are secured in the depressions in any suitable manner.

The advantages of the construction shown are as follows: As the weight of theload rests upon the rollers, and as the rollers bear directly upon the saddle, there is no possibility Of any part being broken or bent by thestrain.

It the rollers be supported by the bolts, as has been done, the latter are liable to be soon bent out of place by the load, and then become worse than useless. The bolts also serve to bind the sides ofthe saddle together and prevent it from splitting--a result that frequently occurs in the ordinary saddle.

'llhe operation of my invention will be easily understood. As the position of the shafts .changes ou account of irregularities of the ground, the back-chain freely adjusts itself up.

on the saddle, and thus relieves the animal from the excessive strain ordinarily received under such circumstances.

My improvement Vcan be easily applied t0 saddles in use, as Well as new saddles, at a very small cost.

Having thus tully described my invention, what I claim as new, and desire lo secure by Letters Patent, is-

1. The employment of rollers in the groove of a cart-saddle, when said rollers have their bearing directly upon the saddle, substantially as described.

2. The cart-saddledescribed,' having the groove a, depression a', rollers b, bearing-plate a2, and bolts.c, when combined and arranged as described, for the purpose set forth.

W. B. MCCLURE.

Witnesses: l v EDM. F. BROWN, FRED. THOMAS. 

